/*
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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/*
 *
 *
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 *
 *
 * Copyright (c) 2000 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.
 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
 */

package org.w3c.dom.css;

import org.w3c.dom.Element;
import org.w3c.dom.stylesheets.DocumentStyle;

/**
 * This interface represents a document with a CSS view. <p> The <code>getOverrideStyle</code>
 * method provides a mechanism through which a DOM author could effect immediate change to the style
 * of an element without modifying the explicitly linked style sheets of a document or the inline
 * style of elements in the style sheets. This style sheet comes after the author style sheet in the
 * cascade algorithm and is called override style sheet. The override style sheet takes precedence
 * over author style sheets. An "!important" declaration still takes precedence over a normal
 * declaration. Override, author, and user style sheets all may contain "!important" declarations.
 * User "!important" rules take precedence over both override and author "!important" rules, and
 * override "!important" rules take precedence over author "!important" rules. <p> The expectation
 * is that an instance of the <code>DocumentCSS</code> interface can be obtained by using
 * binding-specific casting methods on an instance of the <code>Document</code> interface. <p>See
 * also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113'>Document Object Model
 * (DOM) Level 2 Style Specification</a>.
 *
 * @since DOM Level 2
 */
public interface DocumentCSS extends DocumentStyle {

  /**
   * This method is used to retrieve the override style declaration for a
   * specified element and a specified pseudo-element.
   *
   * @param elt The element whose style is to be modified. This parameter cannot be null.
   * @param pseudoElt The pseudo-element or <code>null</code> if none.
   * @return The override style declaration.
   */
  public CSSStyleDeclaration getOverrideStyle(Element elt,
      String pseudoElt);

}
